Dependency formation interacts with case: Evidence from Korean double nominative constructions

The subject-object asymmetry in relative clauses, where structures containing subject dependencies are typically easier to process than those with object dependencies, has been previously attributed to both grammatical function (subject > object) as well as morphological case (e.g., nom > acc). We investigate processing of Double Nominative Constructions (“DNCs”) in Korean, where the object exceptionally has nominative case like the subject (i.e., nom-nom).  This enables isolation of grammatical function and case as possible factors driving the so-called “subject advantage.” We find that dependency formation is more costly in DNCs as compared with nom-acc structures, especially for object relative clauses. We tie this effect to distinctness in morphological case of the subject and object, suggesting that the less morphosyntactically distinct the subject and object are, the more difficult it is to process DNCs in dependencies

The Effects Of Customer Dissatisfaction On Switching Behavior In The Service Sector

Customer acceptance in the online environment has been drastically changed due to the presence of the Internet. After adopting products, customers’ willingness to adopt services in the online environment has received increased attention. This study explores how customers are willing to switch from offline to online services by examining i) the factors of dissatisfaction in the offline service environment; ii) how overall dissatisfaction affects regret and complaining behavior; and iii) how the level of regret and complaining behavior affects switching behavior. Proposed relationships are developed based on the theoretical background of satisfaction/dissatisfaction in the virtualized environment. By applying various statistical analyses, this study identifies managerial and theoretical implications and offers suggestions for the management of e-business customer relationships

Effects of informative and confirmatory feedback on brain activation during negative feedback processing

The current study compared the effects of informative and confirmatory feedback on brain activation during negative feedback processing. For confirmatory feedback trials, participants were informed that they had failed the task, whereas informative feedback trials presented task relevant information along with the notification of their failure. Fourteen male undergraduates performed a series of spatial-perceptual tasks and received feedback while their brain activity was recorded. During confirmatory feedback trials, greater activations in the amygdala, dorsal anterior cingulate cortex, and the thalamus (including the habenular) were observed in response to incorrect responses. These results suggest that confirmatory feedback induces negative emotional reactions to failure. In contrast, informative feedback trials elicited greater activity in the dorsolateral prefrontal cortex (DLPFC) when participants experienced failure. Further psychophysiological interaction (PPI) analysis revealed a negative coupling between the DLPFC and the amygdala during informative feedback relative to confirmatory feedback trials. These findings suggest that providing task-relevant information could facilitate implicit down-regulation of negative emotions following failure

Structural basis for arginine glycosylation of host substrates by bacterial effector proteins

The bacterial effector proteins SseK and NleB glycosylate host proteins on arginine residues, leading to reduced NF-κB-dependent responses to infection. Salmonella SseK1 and SseK2 are E. coli NleB1 orthologs that behave as NleB1-like GTs, although they differ in protein substrate specificity. Here we report that these enzymes are retaining glycosyltransferases composed of a helix-loop-helix (HLH) domain, a lid domain, and a catalytic domain. A conserved HEN motif (His-Glu-Asn) in the active site is important for enzyme catalysis and bacterial virulence. We observe differences between SseK1 and SseK2 in interactions with substrates and identify substrate residues that are critical for enzyme recognition. Long Molecular Dynamics simulations suggest that the HLH domain determines substrate specificity and the lid-domain regulates the opening of the active site. Overall, our data suggest a front-face SNi mechanism, explain differences in activities among these effectors, and have implications for future drug development against enteric pathogens

A comparison of food and nutrient intake between instant noodle consumers and non-instant noodle consumers in Korean adults

Instant noodles are widely consumed in Asian countries. The Korean population consumed the largest quantity of instant noodles in the world in 2008. However, few studies have investigated the relationship between instant noodles and nutritional status in Koreans. The objective of this study was to examine the association between instant noodle consumption and food and nutrient intake in Korean adults. We used dietary data of 6,440 subjects aged 20 years and older who participated in the Korean National Health and Nutrition Examination Survey III. The average age of the instant noodle consumers (INC) was 36.2 and that of the non-instant noodle consumers (non-INC) was 44.9; men consumed more instant noodles than women (P < 0.001). With the exception of cereals and grain products, legumes, seaweeds, eggs, and milk and dairy products, INC consumed significantly fewer potatoes and starches, sugars, seeds and nuts, vegetables, mushrooms, fruits, seasonings, beverages, meats, fishes, and oils and fats compared with those in the non-INC group. The INC group showed significantly higher nutrient intake of energy, fat, sodium, thiamine, and riboflavin; however, the INC group showed a significantly lower intake of protein, calcium, phosphorus, iron, potassium, vitamin A, niacin, and vitamin C compared with those in the non-INC group. This study revealed that consuming instant noodles may lead to excessive intake of energy, fats, and sodium but may also cause increased intake of thiamine and riboflavin. Therefore, nutritional education helping adults to choose a balanced meal while consuming instant noodles should be implemented. Additionally, instant noodle manufacturers should consider nutritional aspects when developing new products

Plasmodesmal receptor-like kinases identified through analysis of rice cell wall extracted proteins

In plants, plasmodesmata (PD) are intercellular channels that function in both metabolite exchange and the transport of proteins and RNAs. Currently, many of the PD structural and regulatory components remain to be elucidated. Receptor-like kinases (RLKs) belonging to a notably expanded protein family in plants compared to the animal kingdom have been shown to play important roles in plant growth, development, pathogen resistance, and cell death. In this study, cell biological approaches were used to identify potential PD-associated RLK proteins among proteins contained within cell walls isolated from rice callus cultured cells. A total of 15 rice RLKs were investigated to determine their subcellular localization, using an Agrobacterium-mediated transient expression system. Of these six PD-associated RLKs were identified based on their co-localization with a viral movement protein that served as a PD marker, plasmolysis experiments, and subcellular localization at points of wall contact between spongy mesophyll cells. These findings suggest potential PD functions in apoplasmic signaling in response to environmental stimuli and developmental inputs

A Relationship between Reading and Reading-to-Write Ability of Korean L2 Learners

The large number of writing tasks and assessment require the ability to integrating writing tasks with other language skills. From this constructivist perspective, this study was designed to see whether the reading-to-write performance can be the independent construct or dependent on the reading ability. The analysis of the study included the descriptions of the reading and integrated writing tasks, and the relationship between reading-to-write construct and reading ability. A group of undergraduate students performed the reading task and the reading-to-write tasks (a summary essay) based on the same text. The results showed that reading ability can play a role in predicting the reading-to-write ability with a high correlated relationship, although this relation was slightly affected by different types of the reading questions. Based on the results, the advocated view by constructivists was proved that the reading ability is required to perform reading-to-write tasks well